28165047032 has 8 divisors (see below), whose sum is σ = 52809463200. Its totient is φ = 14082523512.

The previous prime is 28165047023. The next prime is 28165047059. The reversal of 28165047032 is 23074056182.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760315432 + ... + 1760315447.

It is an arithmetic number, because the mean of its divisors is an integer number (6601182900).

Almost surely, 2^28165047032 is an apocalyptic number.

It is an amenable number.

28165047032 is a deficient number, since it is larger than the sum of its proper divisors (24644416168).

28165047032 is a wasteful number, since it uses less digits than its factorization.

28165047032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520630885 (or 3520630881 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 28165047032 in words is "twenty-eight billion, one hundred sixty-five million, forty-seven thousand, thirty-two".